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发明名称
Procédé de renouvellement (dépose et pose) de voies ferrées
摘要
申请公布号
FR52468(E)
申请公布日期
1945.04.16
申请号
FRD52468
申请日期
1942.10.30
申请人
ENTREPRISE DROUARD FRERES;SOCIETE D'ETUDES ET DE CONSTRUCTION D'OUTILLAGE
发明人
分类号
E01B29/02
主分类号
E01B29/02
代理机构
代理人
主权项
地址
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